98 regular cab. Passenger window is fully closed and will not open. Have checked power to motor junction and it is ok. How can I lower window manually to ensure that it is not stuck. And how do I remove motor so that i can check it. Think I have to drill out rivets (how do I reinstall after drilling)?
Thanks all !!!

 

saw this site on removing the motor to the passenger side windows, I think it can be done also for F150 trucks:

http://www.2carpros.com/how_to/power_window.htm

better check them out!
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Ford F150 truck parts

 

Remove door panel, remove speaker (more for seeing what you are doing), there are 3 bolts that hold the motor to the regulator, and on the metal of the door, there are 3 indents where the bolts lay behind them. Drill at these 3 points (I used a 1/2" bit just to ensure enough room). Remove 3 bolts, be careful to not damage motor (hold it before you take the 3rd bolt out so it doesnt fall). Make sure harness is unplugged, pull out speaker hole. Then move window.

 

If you are removine strictly the motor, you do not need to drill any rivets. Just the 3 bolts that connect the motor to the regulator.